/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Determines if the element can be switched to a provided parent
Returns true if changing the weight was successful
bool CanSwitchToParent ( [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) InChild, [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) InParent, const [TElementDependencyMap](API\Plugins\ControlRig\Rigs\URigHierarchy\TElementDependencyMap) & InDependencyMap, [FString](API\Runtime\Core\Containers\FString) * OutFailureReason )